TIME DIVISION MULTIPLEXED PWM AMPLIFIER
PROBLEM TO BE SOLVED: To provide a suitable time division multiplexed PWM amplifier. SOLUTION: A bridged amplifier output stage, capable of sharing a common conductor between independent loads 32, 42 is disclosed. Multi-Channel pulse width modulated output signals 39, 49 are time division multiplexe...
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| Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a suitable time division multiplexed PWM amplifier. SOLUTION: A bridged amplifier output stage, capable of sharing a common conductor between independent loads 32, 42 is disclosed. Multi-Channel pulse width modulated output signals 39, 49 are time division multiplexed, to reduce the number of required conductors. The output stages are driven, such that the non-common conductor time multiplexed off-channel(s) receives a copy of the shared common signal 50. The differential signal on the off-channel(s) is thereby cancelled, even when the common conductor 50 is carrying a signal for use by the on-channel. COPYRIGHT: (C)2008,JPO&INPIT |
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